Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A module, comprising: a permanent magnet biased electromagnetic haptic engine, comprising: a stator defining a channel; and a shuttle configured to move within the channel; a constraint coupled to the stator and the shuttle; and a force sensor at least partially attached to the permanent magnet biased electromagnetic haptic engine and configured to sense a force applied to the module; wherein: the constraint is configured to constrain closure of a gap between the stator and the shuttle and bias the shuttle toward a rest position in which the shuttle is separated from the stator by the gap; and the constraint is attached to a first side of the stator that faces away from the channel, and unattached to a second side of the stator that faces the shuttle, the first side opposite the second side.
This invention relates to a haptic feedback module designed to provide precise and controlled tactile feedback in electronic devices. The module addresses the challenge of delivering high-quality haptic sensations while maintaining compactness and reliability. The core component is a permanent magnet-biased electromagnetic haptic engine, which includes a stator defining a channel and a shuttle that moves within this channel. The shuttle is biased toward a rest position by a constraint mechanism that prevents complete closure of the gap between the stator and the shuttle, ensuring smooth and repeatable motion. The constraint is attached to the outer side of the stator (opposite the shuttle) and does not interfere with the inner side facing the shuttle, allowing for efficient force transmission. A force sensor is integrated with the haptic engine to detect external forces applied to the module, enabling adaptive feedback control. The design ensures durability, precise force application, and responsive haptic feedback, making it suitable for applications in touchscreens, gaming controllers, and other interactive devices. The module's structure minimizes mechanical wear while maintaining high performance, addressing limitations in conventional haptic systems.
2. The module of claim 1 , wherein the stator comprises: permanent magnets positioned on first opposite sides of the shuttle; and coils positioned on at least one side of the shuttle.
This invention relates to a linear motor module designed for precise positioning and motion control, particularly in applications requiring high accuracy and compact form factors. The module addresses the challenge of achieving efficient linear motion with minimal mechanical complexity, often encountered in automated systems, robotics, and precision instrumentation. The module includes a stator with permanent magnets arranged on opposite sides of a movable shuttle, creating a magnetic field that interacts with coils positioned on at least one side of the shuttle. The coils generate electromagnetic forces when energized, driving the shuttle along a linear path. The arrangement of magnets and coils ensures balanced magnetic forces, reducing mechanical wear and improving stability during operation. The stator's design allows for bidirectional motion, enabling the shuttle to move forward and backward with controlled acceleration and deceleration. The module may also incorporate sensors or feedback mechanisms to monitor position and adjust coil currents for precise motion control. This configuration enhances efficiency, reduces energy consumption, and minimizes mechanical components, making it suitable for applications requiring compact, high-performance linear actuators.
3. The module of claim 1 , further comprising: a button having a user interaction surface connected to a button attachment member; wherein: the user interaction surface extends parallel to an axis along which the shuttle translates; and the button attachment member extends transverse to the axis along which the shuttle translates.
This invention relates to a mechanical module designed for user interaction, particularly in devices requiring precise linear motion control. The module includes a shuttle that translates along a defined axis, and the improvement involves a button mechanism for user input. The button has a user interaction surface that extends parallel to the shuttle's translation axis, allowing intuitive alignment with the motion direction. A button attachment member connects the interaction surface to the shuttle, extending transversely to the translation axis to facilitate mechanical coupling. This configuration enables efficient force transfer from the user's input to the shuttle's movement, improving responsiveness and ergonomics. The button's design ensures that user interaction is directly aligned with the intended motion, reducing misalignment and enhancing control. The attachment member's transverse orientation allows for compact integration while maintaining structural integrity. This improvement is particularly useful in applications where precise, linear actuation is required, such as in mechanical switches, control interfaces, or positioning systems. The button's parallel alignment with the shuttle's motion path optimizes user experience by providing a natural and intuitive interaction method.
4. The module of claim 1 , further comprising: a button having a user interaction surface connected to a button attachment member; wherein: the user interaction surface extends transverse to an axis along which the shuttle translates; and the button attachment member extends parallel to the axis along which the shuttle translates.
This invention relates to a mechanical module for a device, particularly one involving a shuttle that translates along an axis. The module includes a button with a user interaction surface and a button attachment member. The user interaction surface is designed to be pressed by a user and extends perpendicular to the axis of shuttle movement, while the button attachment member extends parallel to this axis. This configuration allows the button to be actuated in a direction transverse to the shuttle's motion, facilitating user interaction without directly interfering with the shuttle's movement. The button may be used to trigger functions such as locking, unlocking, or activating mechanisms within the device. The attachment member ensures stable connection to the module while allowing the button to move freely in its intended direction. This design is useful in applications where compact, ergonomic user input is required alongside precise mechanical movement.
5. A module, comprising: a haptic engine having a stationary portion and a movable portion, the movable portion configured to move linearly, when the haptic engine is stimulated by an electrical signal, to provide a haptic output; a force sensor at least partially attached to the haptic engine and configured to sense a force applied to the module; and a constraint configured to constrain movement of the movable portion relative to the stationary portion and bias the movable portion toward a rest position in which the movable portion is separated from the stationary portion by a gap; wherein, the constraint is unattached to a first side of the movable portion, which first side is transverse to a direction of the linear movement of the movable portion.
This invention relates to a haptic feedback module designed to provide tactile feedback in electronic devices. The module addresses the challenge of delivering precise, controlled haptic responses while ensuring durability and reliability. The system includes a haptic engine with a stationary portion and a movable portion that moves linearly when stimulated by an electrical signal, generating haptic output. A force sensor is integrated with the haptic engine to detect external forces applied to the module, enabling adaptive feedback or safety mechanisms. A constraint mechanism limits the movement of the movable portion relative to the stationary portion, ensuring it returns to a rest position where it is separated from the stationary portion by a gap. Notably, the constraint is not attached to the first side of the movable portion, which is perpendicular to the direction of linear movement, allowing for optimized force distribution and reduced mechanical stress. This design enhances the module's responsiveness and longevity while maintaining precise haptic performance. The invention is particularly useful in devices requiring tactile feedback, such as touchscreens, gaming controllers, or virtual reality interfaces.
6. The module of claim 5 , wherein: the constraint comprises a flexure extending in a direction transverse to the direction of the linear movement of the movable portion; the flexure connects at least one side of the movable portion, other than the first side, to the stationary portion.
This invention relates to a mechanical module with a movable portion constrained by a flexure to allow linear movement while maintaining stability. The problem addressed is achieving precise linear motion with minimal lateral or rotational deviation, which is critical in applications like precision positioning systems, optical alignment, or microelectromechanical systems (MEMS). The module includes a stationary portion and a movable portion that can move linearly relative to the stationary portion. A constraint mechanism ensures this motion is restricted to a single linear degree of freedom. The constraint comprises a flexure, a thin, flexible structural element that bends to allow movement while resisting other motions. The flexure extends transversely to the direction of linear movement, meaning it is oriented perpendicular or at an angle to the path of motion. This orientation helps minimize lateral or rotational forces that could cause misalignment. The flexure connects at least one side of the movable portion to the stationary portion, excluding the side where the primary driving force is applied. This placement ensures that the flexure can effectively counteract unwanted motions while allowing the intended linear displacement. The design may include multiple flexures or additional constraints to further enhance stability and precision. The module is particularly useful in environments requiring high accuracy and repeatability, such as semiconductor manufacturing, medical devices, or scientific instrumentation.
7. The module of claim 5 , wherein the constraint is configured to provide a first stiffness opposing the linear movement of the movable portion.
This invention relates to a mechanical module designed to control the movement of a movable portion within a system, addressing the need for precise and adjustable stiffness to regulate linear motion. The module includes a constraint mechanism that provides a first stiffness opposing the linear movement of the movable portion, ensuring controlled displacement. The constraint is adjustable, allowing the stiffness to be modified based on operational requirements, such as load variations or environmental conditions. The module may also incorporate a biasing element, such as a spring or elastic component, to apply a force that counteracts the movement of the movable portion, further enhancing stability. Additionally, the module may include a damping mechanism to dissipate energy and reduce oscillations, improving system responsiveness. The constraint mechanism can be integrated with sensors to monitor movement and adjust stiffness dynamically, ensuring optimal performance. This design is particularly useful in applications requiring precise motion control, such as robotics, automotive systems, or industrial machinery, where maintaining stability and accuracy is critical. The adjustable stiffness and damping features allow the module to adapt to different operational scenarios, providing flexibility and reliability in various environments.
8. The module of claim 7 , further comprising: a button attached to the movable portion of the haptic engine; wherein: the force applied to the module comprises a button press; and the constraint is configured to provide a second stiffness opposing the force applied to the button.
A haptic feedback module is designed to enhance user interaction with electronic devices by providing tactile responses. The module includes a haptic engine with a movable portion that generates force feedback in response to user input. A constraint mechanism is integrated to control the movement of the movable portion, adjusting its stiffness to modulate the feedback force. This allows for customizable tactile sensations, such as simulating different button press resistances or surface textures. The module further includes a button attached to the movable portion, where pressing the button applies a force that the constraint opposes with a second stiffness setting. This additional stiffness can be tuned to create distinct feedback profiles, such as simulating a firmer or softer button press. The system enables dynamic adjustment of haptic responses, improving user experience in applications like virtual interfaces, gaming controllers, or touchscreens. The constraint mechanism ensures precise control over the feedback force, allowing for realistic and adaptive tactile interactions.
9. The module of claim 5 , further comprising: a button attached to the movable portion of the haptic engine; wherein: the force applied to the module comprises a button press; and the movable portion is configured to move transverse to a direction of the button press when the haptic engine is stimulated by the electrical signal.
This invention relates to a haptic feedback module designed to enhance user interaction with electronic devices. The module addresses the challenge of providing realistic tactile feedback during button presses, particularly in devices where traditional mechanical buttons are replaced with touch-sensitive surfaces. The module includes a haptic engine with a movable portion that generates tactile sensations when stimulated by an electrical signal. A button is attached to this movable portion, and when the button is pressed, the haptic engine is configured to move the button in a direction transverse to the press, creating a dynamic feedback effect. This transverse movement simulates the feel of a mechanical button, improving user perception of interaction quality. The haptic engine may include components such as actuators, springs, or other mechanisms to control the movement and force applied to the button. The invention aims to provide more immersive and responsive feedback in electronic devices, such as smartphones, tablets, or gaming controllers, where precise tactile responses are desirable. The module can be integrated into various devices to enhance user experience by making interactions feel more tactile and engaging.
10. The module of claim 5 , further comprising: a button attached to the movable portion of the haptic engine; wherein: the force applied to the module comprises a button press; and the movable portion is configured to move parallel to a direction of the button press when the haptic engine is stimulated by the electrical signal.
This invention relates to a haptic feedback module designed to enhance user interaction with electronic devices. The module addresses the need for precise and responsive tactile feedback in devices where users interact with physical buttons or touch-sensitive surfaces. The module includes a haptic engine with a movable portion that generates mechanical motion in response to an electrical signal, providing tactile feedback to the user. The movable portion is configured to move in a controlled manner, allowing for customizable haptic effects. The module further includes a button attached to the movable portion of the haptic engine. When the button is pressed, the force applied to the module is translated into a directional movement of the movable portion. The haptic engine is stimulated by an electrical signal, causing the movable portion to move parallel to the direction of the button press. This synchronized movement enhances the user's perception of the button press, providing a more immersive and responsive tactile experience. The design ensures that the haptic feedback is aligned with the user's input, improving interaction accuracy and user satisfaction. The module can be integrated into various devices, including smartphones, gaming controllers, and other input interfaces, to deliver high-quality haptic feedback.
11. The module of claim 5 , wherein: the force sensor is configured to produce an output signal in response to sensing the force applied to the module; and the electrical signal is received by the haptic engine in response to the output signal produced by the force sensor.
A system for force-sensitive haptic feedback includes a module with a force sensor and a haptic engine. The force sensor detects force applied to the module and generates an output signal proportional to the sensed force. The haptic engine receives an electrical signal derived from the force sensor's output, enabling dynamic haptic feedback based on the applied force. The module may be integrated into a user interface, such as a touchscreen or button, to provide tactile responses that vary with the intensity or direction of the applied force. The haptic engine adjusts feedback parameters, such as vibration amplitude or frequency, in real-time based on the force sensor's output. This system enhances user interaction by providing intuitive, context-aware feedback, improving usability in applications like virtual reality, gaming, or industrial control interfaces. The force sensor may use piezoelectric, capacitive, or strain-gauge technology to measure force, while the haptic engine may include actuators, motors, or other mechanisms to generate tactile sensations. The system may also include signal processing components to filter or amplify the force sensor's output before transmission to the haptic engine.
12. The module of claim 5 , wherein the constraint comprises a metal flexure.
A system for mechanical positioning or alignment includes a module with a constraint mechanism that limits movement in one or more directions. The constraint is designed to allow precise adjustment while maintaining stability. In one embodiment, the constraint comprises a metal flexure, which is a thin, flexible metal component that bends under applied force but returns to its original shape when the force is removed. Metal flexures are used to provide controlled movement with high precision, often in applications requiring repeatable positioning or alignment, such as in optical systems, robotics, or semiconductor manufacturing. The flexure may be integrated into a larger assembly to restrict motion to a specific axis or plane while absorbing vibrations or compensating for thermal expansion. The use of metal ensures durability and resistance to wear, making it suitable for high-precision applications where plastic or other materials may degrade over time. The flexure may be designed with specific geometries, such as leaf springs or serpentine shapes, to achieve desired stiffness and flexibility characteristics. This approach allows for fine-tuned adjustments while maintaining structural integrity.
13. The module of claim 5 , wherein: the force sensor comprises a strain sensor; and the strain sensor is attached to and flexes with the stationary portion.
This invention relates to a module for measuring force, particularly in systems where a stationary portion experiences deformation under load. The problem addressed is the need for accurate force measurement in applications where traditional force sensors may not be practical or precise enough. The module includes a force sensor integrated with a stationary portion, where the sensor detects deformation (strain) caused by applied forces. The force sensor is specifically a strain sensor, which flexes with the stationary portion to measure strain directly. This design ensures that the sensor captures real-time deformation data, providing accurate force measurements without requiring separate mounting or complex calibration. The strain sensor's direct attachment to the stationary portion enhances sensitivity and reliability, making it suitable for applications where precise force monitoring is critical, such as industrial machinery, structural health monitoring, or robotics. The invention improves upon prior art by eliminating the need for additional mechanical linkages or external reference points, simplifying the system while maintaining high accuracy. The strain sensor's flexibility and direct integration with the stationary portion allow for compact, low-profile force measurement solutions. This approach is particularly useful in environments where space is limited or where traditional load cells would be impractical. The module's design ensures that the strain sensor remains aligned with the deformation path, minimizing errors and improving long-term stability.
14. The module of claim 5 , wherein: the force sensor comprises a capacitive force sensor; and the capacitive force sensor comprises: a first electrode attached to the stationary portion; and a second electrode attached to the movable portion.
This invention relates to a module with a force sensor, specifically a capacitive force sensor, used to measure force applied between a stationary portion and a movable portion. The problem addressed is the need for precise and reliable force measurement in systems where relative movement occurs between two components. Traditional force sensors may not provide sufficient accuracy or durability in such applications. The module includes a force sensor that detects force applied between a stationary portion and a movable portion. The force sensor is a capacitive type, which measures force by detecting changes in capacitance between two electrodes. The first electrode is attached to the stationary portion, while the second electrode is attached to the movable portion. When force is applied, the distance or overlap between the electrodes changes, altering the capacitance, which is then measured to determine the applied force. This design ensures high sensitivity and accuracy in force detection, even in dynamic environments where the movable portion shifts relative to the stationary portion. The capacitive sensor's non-contact nature also improves durability and reduces wear compared to mechanical sensors. The invention is particularly useful in applications requiring precise force feedback, such as robotics, industrial automation, or medical devices.
15. A method of providing a haptic response to a user, comprising: constraining relative motion between a stationary portion and a movable portion of a haptic engine, to bias the movable portion toward a rest position in which the movable portion is separated from the stationary portion by a gap, and to constrain closure of the gap; determining a force applied to a button using a force sensor, the button mechanically coupled to the movable portion, and the force sensor mechanically coupled to the stationary portion; determining the determined force matches a predetermined force; identifying a haptic actuation waveform associated with the predetermined force; and applying the haptic actuation waveform to the haptic engine; wherein: the relative motion between the stationary portion and the movable portion is constrained to translation of the movable portion along an axis.
This invention relates to haptic feedback systems, specifically methods for generating precise haptic responses in user interfaces. The problem addressed is the need for controlled and responsive haptic feedback in devices where a button or input mechanism is actuated, ensuring tactile feedback that is both intuitive and adjustable based on applied force. The system includes a haptic engine with a stationary portion and a movable portion, where relative motion between them is constrained to linear translation along a single axis. The movable portion is biased toward a rest position by a gap-separation mechanism, preventing full contact with the stationary portion while allowing controlled movement. A force sensor measures the force applied to a button mechanically linked to the movable portion, while the sensor itself is coupled to the stationary portion. When the measured force matches a predetermined threshold, a pre-defined haptic waveform is selected and applied to the haptic engine, generating the desired tactile response. This design ensures that haptic feedback is triggered only at specific force levels, providing consistent and customizable user interactions. The constrained linear motion and gap-separation mechanism enhance precision, while the force-based triggering allows for adaptive feedback based on user input intensity. The system is particularly useful in devices requiring tactile confirmation, such as touchscreens, gaming controllers, or industrial interfaces.
16. The method of claim 15 , wherein: the force sensor comprises at least two force sensing elements positioned at different locations relative to a user interaction surface of the button; the force is determined using different outputs of the at least two force sensing elements; determining the force comprises determining an amount of force; and determining the determined force matches the predetermined force comprises determining the determined amount of force matches a predetermined amount of force.
A method for detecting and processing force applied to a button in a user interface system addresses the challenge of accurately measuring and validating force inputs to improve interaction reliability. The method involves using a force sensor with at least two force sensing elements placed at distinct positions relative to the button's interaction surface. These elements generate different outputs when force is applied, allowing the system to calculate the total force by analyzing these outputs. The method determines the magnitude of the applied force and compares it to a predefined threshold value. If the measured force matches the predetermined amount, the system confirms the force input as valid. This approach enhances precision in force detection by leveraging multiple sensing points, reducing errors from uneven force distribution or sensor misalignment. The technique is particularly useful in applications requiring high-accuracy force feedback, such as touch-sensitive interfaces or mechanical switches in electronic devices. By ensuring consistent force measurement, the method improves user experience and system responsiveness.
17. The method of claim 15 , wherein: the force sensor comprises at least two force sensing elements positioned at different locations relative to a user interaction surface of the button; the force is determined using different outputs of the at least two force sensing elements; determining the force comprises determining a force location; and determining the determined force matches the predetermined force comprises determining the determined force location matches a predetermined force location.
A method for detecting and analyzing force applied to a button involves using a force sensor with at least two force sensing elements positioned at different locations relative to the button's user interaction surface. The force applied to the button is determined by analyzing the outputs of these multiple sensing elements. The method includes calculating both the magnitude of the applied force and its location on the button. The system compares the determined force and its location against predetermined values to verify if the applied force meets specific criteria, including both the force magnitude and its spatial position. This approach allows for precise force detection and localization, enabling applications where both the intensity and point of contact on the button are critical, such as in touch-sensitive interfaces or security mechanisms requiring specific force patterns. The use of multiple sensing elements enhances accuracy by providing redundant or complementary data, improving reliability in force measurement.
18. The method of claim 15 , wherein: determining the force comprises determining a force pattern; and determining the determined force matches the predetermined force comprises determining the determined force pattern matches a predetermined force pattern.
This invention relates to a method for verifying the authenticity of a physical object by analyzing applied force patterns. The problem addressed is the need for secure and tamper-evident authentication mechanisms that are difficult to replicate or forge. The method involves applying a force to an object and comparing the resulting force pattern to a predetermined pattern stored in a database. The force pattern is generated by applying a specific sequence of forces to the object, which interacts with its physical properties to produce a unique response. By matching the determined force pattern to the predetermined pattern, the system can authenticate the object. The method ensures that even if an object is copied, the force response will differ due to variations in material properties, manufacturing processes, or structural inconsistencies. This approach enhances security by making it difficult for counterfeiters to replicate both the object and its force response. The system may also include steps for preprocessing the force data, such as filtering or normalizing, to improve accuracy. The invention is applicable in industries requiring high-security authentication, such as pharmaceuticals, luxury goods, and government documents.
19. The method of claim 15 , wherein the axis is transverse to a direction of the force applied to the button.
A system and method for improving user interaction with a mechanical button mechanism involves detecting and responding to applied forces in a controlled manner. The invention addresses the problem of unintended or excessive actuation of buttons in electronic devices, which can lead to user frustration and device malfunctions. The solution involves a button mechanism with a movable button that applies force to a sensing element, which detects the force and generates a corresponding signal. The system includes a processor that analyzes the signal to determine the magnitude and direction of the applied force. Based on this analysis, the processor controls an actuator to adjust the position of the button or another component to optimize the user experience, such as reducing unintended actuations or providing haptic feedback. The button mechanism may include a pivoting or sliding element that allows the button to move in response to the applied force, and the sensing element may be a strain gauge, load cell, or other force-sensitive component. The system can also include a housing that supports the button and the sensing element, ensuring precise force detection and response. The invention ensures that the button mechanism operates reliably and efficiently, enhancing user satisfaction and device performance.
20. The method of claim 15 , wherein the axis is parallel to a direction of the force applied to the button.
A system and method for detecting and measuring force applied to a button in an electronic device. The invention addresses the challenge of accurately determining the magnitude and direction of force applied to a button, which is critical for user input in devices such as touchscreens, keyboards, or mechanical switches. The method involves using a sensor array to detect deformation or displacement caused by the applied force, then analyzing the sensor data to calculate the force vector. The force vector includes both magnitude and direction, allowing for precise input interpretation. The sensor array may include capacitive, resistive, or piezoelectric sensors arranged in a grid or other configuration to capture spatial variations in force distribution. The system processes the sensor data to determine the direction of the applied force relative to the button's surface, enabling features such as directional input or pressure-sensitive controls. In one embodiment, the force detection axis is aligned with the direction of the applied force, ensuring accurate measurement regardless of the angle of application. This alignment improves sensitivity and reduces errors in force estimation, particularly in applications requiring fine-grained input detection. The method may also include calibration steps to account for variations in sensor sensitivity or environmental factors. The invention is applicable in consumer electronics, industrial interfaces, and medical devices where precise force input is required.
Unknown
March 24, 2020
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